Old Groove Cutter Restoration, Groove Saw Hitachi GA21

This is a groove saw that cuts grooves with a router blade. It works just like a circular saw in cutting straight groove. It is hitachi GA21 groove cutter that I got it from the recycle shop. In this videos I recorded it step by step the process of restoration. I hope you find something useful enjoy from this video I am happy to receive your feedback, advices, suggestions to improve myself. I make this video for just curious challenge, so please accept my apologies if I have made mistake in t